Compound Interest Calculator

Calculate how your investments grow over time with the power of compound interest.

Investment Details
Enter your investment details to calculate compound interest growth.
$10,000
$500
8.00%
20 years
2.00%
Compound Interest Results
Your investment growth over time with compound interest.

Future Value

$297,618

Total Contributions

$124,500

Total Interest Earned

$173,118

Inflation-Adjusted Future Value

$233,103

Investment Summary

Initial Investment:$10,000
Monthly Contribution:$500
Annual Interest Rate:8.00%
Compounding Frequency:Annually
Investment Period:20 years

Growth Breakdown

Initial Investment:$10,000
Additional Contributions:$114,500
Interest Earned:$173,118
Final Balance:$297,618

Investment Growth Preview

Showing first 10 years. View full chart in the Growth Chart tab.

About Compound Interest

Compound interest is the addition of interest to the principal sum of a loan or deposit, or in other words, interest on interest. It is the result of reinvesting interest, rather than paying it out, so that interest in the next period is earned on the principal sum plus previously accumulated interest.

The power of compound interest is one of the most important concepts in investing. Even small amounts of money can grow significantly over time when interest compounds.

The frequency of compounding makes a difference in the total amount of interest earned. The more frequently interest is compounded, the more interest will be earned.

In Canada, registered accounts like TFSAs and RRSPs allow your investments to grow tax-free or tax-deferred, maximizing the benefits of compound interest.